Locomotive car-coupling.



M; B GIBERSON. LOGOMOTIVE GAR COUPLING.

APPLICATION FILED MAILSO, 1914 Patented Mar. 23, 1915.

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M. B. GIBERSON.

LOGOMOTIVE GAR. COUPLING.

APPLICATION FILED MAR. 30, 1914.

1,132,574. Patented Mar. 23, 1915.

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MASON B. GIBERSON, OF DETROIT, MICHIGAN, ASSIGNOR T0 MCNARCH STEELOASTINGS COMPANY, OF DETROIT, MICHIGAN. A COBPGRATIGN OF MICHIGAN.

LOCOMGTIVE CAR-COUPLING.

Specification of Letters 'Patent. Patgnted Mi 23 1915.

Application filed. March 30, 1914. Serial No. 828,381.

To all whom it may concern Be it known that I, MAsoN B. GIBERSON, acitizen of the United States of America, residing at Detroit, in thecounty of Wayne and State of Michigan, have invented certain new anduseful Improvements in Locomotive CarCouplers, of which the following isa specification, reference being had therein'to the accompanyingdrawings.

The invention relates to car couplers and more particularly to couplersadapted for the attachmenet of the cars to the locomo tive. With thestandard construction now in use locomotive couplers are provided withrelatively short shanks which engage a pocketed fitting secured totheframe of the locomotive. The pocket in the fitting is so fashioned asto permit a lateral angular movement of the coupler and shank and thelatter is retained from disengagement by a pivot pin extendingvertically through the fi ting and shank. The end of the shank isadapted to abut against the end of the pocket to transmit the thrustwhen buffing, but the draft when the locomotive is moving forward istransmitted through the pin. One defect in constructions of this kind isthe tendency for the coupler shank, pocket member and pin to wear so asto permit the hooked end of the coupler to droop or sag. This throws allof the pullin stress upon the upper portion of the coupling hook, whichweakens the. structure and is otherwise objectionable.

It is the object of the present invention to avoid such defects, whichis accomplished by the construction as hereinafter set forth.

In the drawings :'Figure 1 is a sectional side elevation of the couplerand the pocketed fitting for receiving the same;

Fig. 2 is a plan view; Fig. 3 is a plan view showing the couplerdetached, in position for engagement; and Fig. i is a horizontal sectionthrough theattached coupler.

A is the coupler head, B is the pocket fitting which has the pocket orrecess C for receiving the shank D of the coupler, and E is the pivotpin passing through the walls of the recess and through the shank D,provided with sufficient clearance from the latter to permit. the end ofthe'shank to bear against the bottom of the pocket in buffing.

To hold the coupler from drooping and 1 also to assist in transmittingthe draft stress I have provided an interlocking engagement between theupper portion of the coupler and the pocket fitting. As shown, thecoupler head is provided with an upward extension G having a rearwardlyeX- tending lug H terminating in a downward hook I of segmental form,the segment being substantially concentric with the axis of the pin E.The fitting B is also provided with a forwardly-projecting member Jhaving an upwardlyextending segmental hook K for engaging with thesegmental hook I. The hook K is cut away at one side to form an entranceslot L of sufiicient width for the insertion of the hook I when theshank is turnedto its extreme angular position. L is a pm which normallyholds the shank from turning to this extreme position and.

therefore prevents accidental disengagement of the hook I from the hookK. The engagement of the hooks I and K will prevent the rear end of thecoupler from drooping, and furthermore, the draft instead of horizontalplane, and is as readily attach able and detachable as withconstructions heretofore used.

What I claim as my invention is 1. In a car coupler, the combinationwith the coupler head and shank, of a pocket fitting for receiving saidshank providing for lateral angular movement thereof, a a pivot-pin forattaching said shank to said fitting, and interlocking means betweensaid pocket fitting and coupler at the upper outer edge of the former,cooperating with the bearing of said shank in said pocket fitting tohold the coupler from drooping.

2. In a car coupler, the combination with the coupler head and shank, ofa pocket fitting for receiving the shank providing for the lateralangular movement thereof, a-

pivot pin for attaching said shank to said fitting,

and-inter-engaging segmental hooks on said coupler and fitting locatedat the upper outer edge of the latter and in 00- operation With thebearing for the shank Within said fitting, holding said coupler fromdrooping.

3. In a car coupler, the combination with the coupler head and shank, ofa pocket fitting for receiving said shank providing clearance for thelateral angular movement thereof, a pivot pin for connecting said shankto said pocket fitting, and inter-engageeble segmental hooks on saidcoupler head and pocket fitting arranged concentric to the axis of saidpin, one of said hooks being cut away to form an entrance slot when thecoupler is in extreme angular position.

4. In a car coupler, the combination With the coupler head and shank, ofa pocket fitting for receiving said shank providing clearance for thelateral angular movement thereof, a pin for connecting said shank tosaid pocket fitting, cooperating lugs of segmental form on said fittingand coupler head, one of said lugs being cut away to form entrance slotwhen the coupler is in extreme angular position, and detachable meansfor preventing the disengagement of said lugs.

In testimony whereof I afiix my signature in presence of two Witnesses.

MASON B. GIBERSON.

Witnesses JAMns P. BARRY, I'IENRIEIFTA E. BOWMAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

